Hello,
The missing example source code for the USB device was a mistake on our part while the Cyclone Development Kit for Nios II was being put together. The next release of the Kit will contain the example source code.
In the meantime, a Nios II IDE example software project that makes use of the USB device has been made available in the downloads area.
nios ii microtronix cyclone development board usb test project (
http://www.niosforum.com/downloads/examples/mtx_cyc_board_usb_test.zip)
installation Unzip the file to
.../altera/kits/nios2/examples/software
usage 1. Create a new Altera Nios II C/C++ Application
2. Select the ptf file from the usb_32 project for the Microtronix Cyclone Development Board example designs.
3. Select USB Example at your project template.
4. Build the project.
5. Ensure that the usb_32 core is running on the Microtronix Cyclone Development Board
6. Plug in a USB device (such as a mouse) into the board (J2)
7. Run the project.
The example code will display information from the device descriptor for the USB peripheral when run.
I hope it helps, Please feel free to contact us for assistance if necessary.